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Number of females in city B = 19740 – 15540 = 4200 Number of females in city D = 18800 – 12960 = 5840 Number of females in city E = 16680 – 13100 = 3580 Required average = (4200 + 5840 + 3580)/3 = 13620/3 = 4540
The average number of books on history, polity and geography in a library is 190, and the average number of books on history and geography is 160. If th...
Average run scored by a batsman in first ‘x’ matches is 44. In next 8 matches he scored runs with an average of 80 so that his overal...
20 students go for a picnic. 10 of them spent Rs. 64 each on their food and rest spent Rs.4 more than the average expenditure of all 20. What was the to...
In a class of 40 students, the average weight of the class is 65 kg, but when one of the students left from the school and 6 new ...
The combined average weight of 8 apples and 5 oranges is 150 grams. If the average weight of the apples is 180 grams, what is the average weight of the ...
A person purchased diesel at Rs. 7, Rs. 10 and Rs. 12 per litre in three successive years. If he spent Rs. 2520 each year on diesel, then find the appro...
The average marks scored by 30 boys and 40 girls are 75 and 85 respectively. Find the average marks scored by all the students together. (Answer should ...
15 years ago, the average age of all the 80 teachers of the college was 50 years. 8 years ago, the principal has retired from her post at the age of 60 ...
The average of 75 percent of x and 48 percent of y is 90. What will be the average of 125 percent of x and 80 percent of y?
